73131981
Jun 27, 1977
Mar 6, 1979
ELECTRONIC APPARATUS-NAMELY, COMPUTING AND DIGITAL DISPLAY APPARATUS UTILIZING INDIVIDUAL INPUT DEVICES FOR USE IN GATHERING GROUP RESPONSE DATA
Electrical and Scientific ApparatusGATHERING ATTITUDINAL INFORMATION IN THE FIELD OF PUBLIC OPINION AND IN THE ADVERTISING, MARKETING, POLITICAL OR PUBLIC RELATIONS FIELDS
Advertising and Business